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Articles 631 - 660 of 1483
Full-Text Articles in Entire DC Network
Artificial And Natural Radionuclides In Cryoconite As Tracers Of Supraglacial Dynamics: Insights From The Morteratsch Glacier (Swiss Alps), G Baccolo, M Nastasi, C Clason, B Di Mauro, Et Al
Artificial And Natural Radionuclides In Cryoconite As Tracers Of Supraglacial Dynamics: Insights From The Morteratsch Glacier (Swiss Alps), G Baccolo, M Nastasi, C Clason, B Di Mauro, Et Al
School of Geography, Earth and Environmental Sciences
Cryoconite, a sediment found on the surface of glaciers, is known for its ability to accumulate radionuclides. New data on cryoconite from the Morteratsch glacier (Switzerland) are presented to shed light on the mechanisms that control the distribution of radioactivity in cryoconite. Among the radionuclides detected in our samples, we have identified 108mAg, an artificial species which has never been observed in terrestrial environments before. This finding supports that cryoconite has an extraordinary ability to accumulate radioactivity. Our results also show that the radioactivity of cryoconite from a single glacier is far from uniform. Both the absolute amount of radioactivity …
Editorial: Geoscience In A Time Of Pandemics, J Tennant, S Illingworth, I Stewart, Elverfeldt K Von
Editorial: Geoscience In A Time Of Pandemics, J Tennant, S Illingworth, I Stewart, Elverfeldt K Von
School of Geography, Earth and Environmental Sciences
We, the Executive Editors at Geoscience Communication, sincerely hope that this message finds you and your loved ones in good health. We are in the midst of yet another global health crisis, the Coronavirus pandemic (COVID-19). This affects all of us, and we truly hope that you are remaining safe and taking all necessary precautions. We all are facing difficult times ahead, and we hope that we can all together find the strength and courage within to do our best.
Editorial: Geoscience In A Time Of Pandemics, Jonathan P. Tennant, Sam Illingworth, Iain Stewart, Elverfeldt K Von
Editorial: Geoscience In A Time Of Pandemics, Jonathan P. Tennant, Sam Illingworth, Iain Stewart, Elverfeldt K Von
School of Geography, Earth and Environmental Sciences
We, the Executive Editors at Geoscience Communication, sincerely hope that this message finds you and your loved ones in good health. We are in the midst of yet another global health crisis, the Coronavirus pandemic (COVID-19). This affects all of us, and we truly hope that you are remaining safe and taking all necessary precautions. We all are facing difficult times ahead, and we hope that we can all together find the strength and courage within to do our best.
Development And Testing Scenarios For Implementing Land Use And Land Cover Changes During The Holocene In Earth System Model Experiments, Sp Harrison, M-J Gaillard, Bd Stocker, M Vander Linden, Et Al
Development And Testing Scenarios For Implementing Land Use And Land Cover Changes During The Holocene In Earth System Model Experiments, Sp Harrison, M-J Gaillard, Bd Stocker, M Vander Linden, Et Al
School of Geography, Earth and Environmental Sciences
Abstract. Anthropogenic changes in land use and land cover (LULC) during the pre-industrial Holocene could have affected regional and global climate. Existing scenarios of LULC changes during the Holocene are based on relatively simple assumptions and highly uncertain estimates of population changes through time. Archaeological and palaeoenvironmental reconstructions have the potential to refine these assumptions and estimates. The Past Global Changes (PAGES) LandCover6k initiative is working towards improved reconstructions of LULC globally. In this paper, we document the types of archaeological data that are being collated and how they will be used to improve LULC reconstructions. Given the large methodological …
Baddeleyite Microstructures In Variably Shocked Martian Meteorites: An Opportunity To Link Shock Barometry And Robust Geochronology, Lg Staddon, Jr Darling, Nr Stephen, J Dunlop, Kt Tait
Baddeleyite Microstructures In Variably Shocked Martian Meteorites: An Opportunity To Link Shock Barometry And Robust Geochronology, Lg Staddon, Jr Darling, Nr Stephen, J Dunlop, Kt Tait
School of Geography, Earth and Environmental Sciences
No abstract provided.
A Unique Bacteriohopanetetrol Stereoisomer Of Marine Anammox, R Schwartz-Narbonne, P Schaeffer, Ec Hopmans, M Schenesse, Et Al
A Unique Bacteriohopanetetrol Stereoisomer Of Marine Anammox, R Schwartz-Narbonne, P Schaeffer, Ec Hopmans, M Schenesse, Et Al
School of Geography, Earth and Environmental Sciences
Anaerobic ammonium oxidation (anammox) is a major process of bioavailable nitrogen removal from marine systems. Previously, a bacteriohopanetetrol (BHT) isomer, with unknown stereochemistry, eluting later than BHT when examined by high performance liquid chromatography (HPLC), was detected in ‘Ca. Scalindua profunda’ and proposed as a biomarker for anammox in marine paleo-environments. However, the utility of this BHT isomer as an anammox biomarker is hindered by the fact that four other, non-anammox, bacteria are also known to produce a late-eluting BHT stereoisomer. The stereochemistry in Acetobacter pasteurianus, Komagataeibacter xylinus and Frankia sp. was known to be 17ß, 21ß(H), 22R, 32R, 33R, …
Dissolved Iron In The Bermuda Region Of The Subtropical North Atlantic Ocean: Seasonal Dynamics, Mesoscale Variability, And Physicochemical Speciation, P. N. Sedwick, A. R. Bowie, T. M. Church, J. T. Cullen, R. J. Johnson, M. C. Lohan, C. M. Marsay, D. J. Mcgillicuddy, B. M. Sohst, A. Tagliabue, S. J. Ussher
Dissolved Iron In The Bermuda Region Of The Subtropical North Atlantic Ocean: Seasonal Dynamics, Mesoscale Variability, And Physicochemical Speciation, P. N. Sedwick, A. R. Bowie, T. M. Church, J. T. Cullen, R. J. Johnson, M. C. Lohan, C. M. Marsay, D. J. Mcgillicuddy, B. M. Sohst, A. Tagliabue, S. J. Ussher
School of Geography, Earth and Environmental Sciences
No abstract provided.
Cryoconite: An Efficient Accumulator Of Radioactive Fallout In Glacial Environments, G Baccolo, E Łokas, P Gaca, D Massabò, Et Al
Cryoconite: An Efficient Accumulator Of Radioactive Fallout In Glacial Environments, G Baccolo, E Łokas, P Gaca, D Massabò, Et Al
School of Geography, Earth and Environmental Sciences
Abstract. Cryoconite is rich in natural and artificial radioactivity, but a discussion about its ability to accumulate radionuclides is lacking. A characterization of cryoconite from two Alpine glaciers is presented here. Results confirm that cryoconite is significantly more radioactive than the matrices usually adopted for the environmental monitoring of radioactivity, such as lichens and mosses, with activity concentrations exceeding 10 000 Bq kg-1 for single radionuclides. This makes cryoconite an ideal matrix to investigate the deposition and occurrence of radioactive species in glacial environments. In addition, cryoconite can be used to track environmental radioactivity sources. We have exploited atomic and …
Geomorphic Response To Differential Uplift: River Long Profiles And Knickpoints From Guadalcanal And Makira (Solomon Islands), Sarah J. Boulton
Geomorphic Response To Differential Uplift: River Long Profiles And Knickpoints From Guadalcanal And Makira (Solomon Islands), Sarah J. Boulton
School of Geography, Earth and Environmental Sciences
No abstract provided.
Tributary-Junction Alluvial Fan Response To An Enso Rainfall Event In The El Huasco Watershed, Northern Chile, Albert Cabré, Germán Aguilar, Anne E. Mather, Víctor Fredes, Rodrigo Riquelme
Tributary-Junction Alluvial Fan Response To An Enso Rainfall Event In The El Huasco Watershed, Northern Chile, Albert Cabré, Germán Aguilar, Anne E. Mather, Víctor Fredes, Rodrigo Riquelme
School of Geography, Earth and Environmental Sciences
Tributary-junction alluvial fans situated at the intersection of confined valleys with <100 km2 tributary catchments are of special interest to evaluate the heterogeneous consequences of extreme rainfall events in arid zones. These fans record the episodic sedimentological behaviour of the hillslope response to rainstorm events within tributary catchments, together with the influence on the main fluvial systems. In this paper, we benefit from the March 2015 event (23–26 March 2015), which produced 75–46 mm of precipitation over four days in the southern portion of the Atacama Desert. This storm event triggered several debris flows in El Huasco River watershed tributaries and, therefore, tributary-junction alluvial fans received a total of ∼106 m3 of sediments across 49 activated catchments. We find that the characteristic storm signature across the catchments can be synthetised in a conceptual fan formation model based on field mapping of facies (F1 to F6) present in the fans. The characteristic signature is a record of initially high sediment-to-water flows restricted to the fan environments (mainly debris flows) followed by later, more dilute (mainly hyper-concentrated to fluvial) flows that incise the tributary-junction alluvial fan deposits and link tributary catchments with the main river. These later-stage flood event deposits, locally, are capable of ponding and compartmentalising the main river where the longitudinal connectivity of the tributary-junction catchment is effective. This situation improves tributary-junction fan slope and main-trunk-channel linkages. This approach provides a reference framework for understanding the distribution and routing of effective runoff from similar rainfall events that control the aggradation and incision of the fluvial system, which is of great value when studying past stratigraphic arrangements in these arid alleys.
Developing The Oecd 106 Fate Testing Protocol For Active Pharmaceuticals In Soil, Katherine E. Lees, Mark F. Fitzsimons, Jason Snape, Alan Tappin, Sean D.W. Comber
Developing The Oecd 106 Fate Testing Protocol For Active Pharmaceuticals In Soil, Katherine E. Lees, Mark F. Fitzsimons, Jason Snape, Alan Tappin, Sean D.W. Comber
School of Geography, Earth and Environmental Sciences
No abstract provided.
Dark Co2 Fixation Into Phospholipid-Derived Fatty Acids By The Cold-Water Coral Associated Sponge Hymedesmia (Stylopus) Coriacea (Tisler Reef, Ne Skagerrak), Fc Van Duyl, Sk Lengger, S Schouten, Et Al
Dark Co2 Fixation Into Phospholipid-Derived Fatty Acids By The Cold-Water Coral Associated Sponge Hymedesmia (Stylopus) Coriacea (Tisler Reef, Ne Skagerrak), Fc Van Duyl, Sk Lengger, S Schouten, Et Al
School of Geography, Earth and Environmental Sciences
Many cold-water sponges harbour microorganisms of which the role in the sponge host remains enigmatic. Here, we show a transfer of fixed inorganic carbon by sponge-associated microbes to its host, the cold-water coral encrusting sponge Hymedesmia (Stylopus) coriacea. Sponge were collected at approx. 100 m depth and incubated for 1.5–2.5 days with 13C labelled dissolved inorganic carbon (DIC) as tracer. Total DIC fixation rates ranged from 0.03–0.11 mmol C × mmol Csponge × d-1. 13C-tracer was recovered in bacterial-specific (i.e. short and branched) and sponge-specific (very long-chained) phospholipid-derived fatty acids (PLFA's), but was not incorporated into archaeal lipids. 13C-incorporation in …
Coseismic And Monsoon-Triggered Landslide Impacts On Remote Trekking Infrastructure, Langtang Valley, Nepal, J. N. Jones, M. Stokes, S. J. Boulton, G. L. Bennett, M. R.Z. Whitworth
Coseismic And Monsoon-Triggered Landslide Impacts On Remote Trekking Infrastructure, Langtang Valley, Nepal, J. N. Jones, M. Stokes, S. J. Boulton, G. L. Bennett, M. R.Z. Whitworth
School of Geography, Earth and Environmental Sciences
No abstract provided.
Dissolved Organic Phosphorus Uptake By Marine Phytoplankton Is Enhanced By The Presence Of Dissolved Organic Nitrogen, Mark F. Fitzsimons, Ian Probert, Fanny Gaillard, Andrew P. Rees
Dissolved Organic Phosphorus Uptake By Marine Phytoplankton Is Enhanced By The Presence Of Dissolved Organic Nitrogen, Mark F. Fitzsimons, Ian Probert, Fanny Gaillard, Andrew P. Rees
School of Geography, Earth and Environmental Sciences
No abstract provided.
Mobilisation Of Antimony From Microplastics Added To Coastal Sediment, Elanor James, Andrew Turner
Mobilisation Of Antimony From Microplastics Added To Coastal Sediment, Elanor James, Andrew Turner
School of Geography, Earth and Environmental Sciences
No abstract provided.
Kohl Containing Lead (And Other Toxic Elements) Is Widely Available In Europe, Montserrat Filella, Agathe Martignier, Andrew Turner
Kohl Containing Lead (And Other Toxic Elements) Is Widely Available In Europe, Montserrat Filella, Agathe Martignier, Andrew Turner
School of Geography, Earth and Environmental Sciences
No abstract provided.
Key Opportunities To Replace, Reduce, And Refine Regulatory Fish Acute Toxicity Tests, N Burden, R Benstead, K Benyon, M Clook, C Green, J Handley, N Harper, Sk Maynard, C Mead, A Pearson, K Ryder, D Sheahan, R Egmond, Jr Wheeler, Th Hutchinson
Key Opportunities To Replace, Reduce, And Refine Regulatory Fish Acute Toxicity Tests, N Burden, R Benstead, K Benyon, M Clook, C Green, J Handley, N Harper, Sk Maynard, C Mead, A Pearson, K Ryder, D Sheahan, R Egmond, Jr Wheeler, Th Hutchinson
School of Geography, Earth and Environmental Sciences
Fish acute toxicity tests are conducted as part of regulatory hazard identification and risk-assessment packages for industrial chemicals and plant protection products. The aim of these tests is to determine the concentration which would be lethal to 50% of the animals treated. These tests are therefore associated with suffering in the test animals, and Organisation for Economic Co-operation and Development test guideline 203 (fish, acute toxicity) studies are the most widely conducted regulatory vertebrate ecotoxicology tests for prospective chemical safety assessment. There is great scope to apply the 3Rs principles-the reduction, refinement, and replacement of animals-in this area of testing. …
Unravelling Middle To Late Jurassic Palaeoceanographic And Palaeoclimatic Signals In The Hebrides Basin Using Belemnite Clumped Isotope Thermometry, Madeleine L. Vickers, Alvaro Fernandez, Stephen P. Hesselbo, Gregory D. Price, Stefano M. Bernasconi, Stefanie Lode, Clemens V. Ullmann, Nicolas Thibault, Iben Winther Hougaard, Christoph Korte
Unravelling Middle To Late Jurassic Palaeoceanographic And Palaeoclimatic Signals In The Hebrides Basin Using Belemnite Clumped Isotope Thermometry, Madeleine L. Vickers, Alvaro Fernandez, Stephen P. Hesselbo, Gregory D. Price, Stefano M. Bernasconi, Stefanie Lode, Clemens V. Ullmann, Nicolas Thibault, Iben Winther Hougaard, Christoph Korte
School of Geography, Earth and Environmental Sciences
No abstract provided.
Magnetic Anisotropy Reveals Acadian Transpressional Fabrics In An Appalachian Ophiolite (Thetford Mines, Canada), A Di Chiara, Antony Morris, Mark W. Anderson, Luca Menegon, Alain Tremblay
Magnetic Anisotropy Reveals Acadian Transpressional Fabrics In An Appalachian Ophiolite (Thetford Mines, Canada), A Di Chiara, Antony Morris, Mark W. Anderson, Luca Menegon, Alain Tremblay
School of Geography, Earth and Environmental Sciences
SUMMARY Magnetic anisotropy has proved effective in characterizing primary, spreading-related magmatic fabrics in Mesozoic (Tethyan) ophiolites, for example in documenting lower oceanic crustal flow. The potential for preservation of primary magnetic fabrics has not been tested, however, in older Palaeozoic ophiolites, where anisotropy may record regional strain during polyphase deformation. Here, we present anisotropy of magnetic susceptibility results from the Ordovician Thetford Mines ophiolite (Canada) that experienced two major phases of post-accretion deformation, during the Taconian and Acadian orogenic events. Magnetic fabrics consistent with modal layering in gabbros are observed at one locality, suggesting that primary fabrics may survive deformation …
Photo- And Autoxidation Of Unsaturated Algal Lipids In The Marine Environment: An Overview Of Processes, Their Potential Tracers, And Limitations, Jean François Rontani, Simon T. Belt
Photo- And Autoxidation Of Unsaturated Algal Lipids In The Marine Environment: An Overview Of Processes, Their Potential Tracers, And Limitations, Jean François Rontani, Simon T. Belt
School of Geography, Earth and Environmental Sciences
No abstract provided.
Asynchronous Carbon Sink Saturation In African And Amazonian Tropical Forests, Wannes Hubau, Simon L. Lewis, Oliver L. Phillips, Kofi Affum-Baffoe, Hans Beeckman, Aida Cuní-Sanchez, Armandu K. Daniels, Corneille E.N. Ewango, Sophie Fauset, Jacques M. Mukinzi, Douglas Sheil, Bonaventure Sonké, Martin J.P. Sullivan, Terry C.H. Sunderland, Hermann Taedoumg, Sc Thomas, Lee J.T. White, Katharine A. Abernethy, Stephen Adu-Bredu, Christian A. Amani, Timothy R. Baker, Lindsay F. Banin, Fidèle Baya, Serge K. Begne, Amy C. Bennett, Fabrice Benedet, Robert Bitariho, Yannick E. Bocko, Pascal Boeckx, Patrick Boundja, Roel J.W. Brienen, Terry Brncic, Eric Chezeaux, George B. Chuyong, Connie J. Clark, Murray Collins, James A. Comiskey, David A. Coomes, Greta C. Dargie, Haulleville T De, Marie Noel Djuikouo Kamdem, Jean Louis Doucet, Adriane Esquivel-Muelbert, Ted R. Feldpausch, Alusine Fofanah, Ernest G. Foli, Martin Gilpin, Emanuel Gloor, Christelle Gonmadje, Sylvie Gourlet-Fleury, Jefferson S. Hall, Alan C. Hamilton, David J. Harris, Terese B. Hart, Mireille B.N. Hockemba, Annette Hladik, Suspense A. Ifo, Kathryn J. Jeffery, Tommaso Jucker, Emmanuel Kasongo Yakusu, Elizabeth Kearsley, David Kenfack, Alexander Koch, Miguel E. Leal, Aurora Levesley, Jeremy A. Lindsell, Janvier Lisingo, Gabriela Lopez-Gonzalez, Jon C. Lovett, Jean Remy Makana, Yadvinder Malhi, Andrew R. Marshall, J Martin, Eh Martin, Faustin M. Mbayu, Vincent P. Medjibe, Vianet Mihindou, Edward T.A. Mitchard, Sam Moore, Pantaleo K.T. Munishi, Natacha Nssi Bengone, Lucas Ojo, Fidèle Evouna Ondo, Kelvin S.H. Peh, Georgia C. Pickavance, Ad Poulsen, N/A Pou
Asynchronous Carbon Sink Saturation In African And Amazonian Tropical Forests, Wannes Hubau, Simon L. Lewis, Oliver L. Phillips, Kofi Affum-Baffoe, Hans Beeckman, Aida Cuní-Sanchez, Armandu K. Daniels, Corneille E.N. Ewango, Sophie Fauset, Jacques M. Mukinzi, Douglas Sheil, Bonaventure Sonké, Martin J.P. Sullivan, Terry C.H. Sunderland, Hermann Taedoumg, Sc Thomas, Lee J.T. White, Katharine A. Abernethy, Stephen Adu-Bredu, Christian A. Amani, Timothy R. Baker, Lindsay F. Banin, Fidèle Baya, Serge K. Begne, Amy C. Bennett, Fabrice Benedet, Robert Bitariho, Yannick E. Bocko, Pascal Boeckx, Patrick Boundja, Roel J.W. Brienen, Terry Brncic, Eric Chezeaux, George B. Chuyong, Connie J. Clark, Murray Collins, James A. Comiskey, David A. Coomes, Greta C. Dargie, Haulleville T De, Marie Noel Djuikouo Kamdem, Jean Louis Doucet, Adriane Esquivel-Muelbert, Ted R. Feldpausch, Alusine Fofanah, Ernest G. Foli, Martin Gilpin, Emanuel Gloor, Christelle Gonmadje, Sylvie Gourlet-Fleury, Jefferson S. Hall, Alan C. Hamilton, David J. Harris, Terese B. Hart, Mireille B.N. Hockemba, Annette Hladik, Suspense A. Ifo, Kathryn J. Jeffery, Tommaso Jucker, Emmanuel Kasongo Yakusu, Elizabeth Kearsley, David Kenfack, Alexander Koch, Miguel E. Leal, Aurora Levesley, Jeremy A. Lindsell, Janvier Lisingo, Gabriela Lopez-Gonzalez, Jon C. Lovett, Jean Remy Makana, Yadvinder Malhi, Andrew R. Marshall, J Martin, Eh Martin, Faustin M. Mbayu, Vincent P. Medjibe, Vianet Mihindou, Edward T.A. Mitchard, Sam Moore, Pantaleo K.T. Munishi, Natacha Nssi Bengone, Lucas Ojo, Fidèle Evouna Ondo, Kelvin S.H. Peh, Georgia C. Pickavance, Ad Poulsen, N/A Pou
School of Geography, Earth and Environmental Sciences
No abstract provided.
Arsenic Speciation And Its Dna Fractionation In The Rice Plant Oryza Sativa, Mike E. Foulkes, Bashdar A. Sadee, Steve J. Hill
Arsenic Speciation And Its Dna Fractionation In The Rice Plant Oryza Sativa, Mike E. Foulkes, Bashdar A. Sadee, Steve J. Hill
School of Geography, Earth and Environmental Sciences
The transport of arsenic from soil through to edible crop is important when assessing the potential health risks from a food source.
The Global Abundance Of Tree Palms, Robert Muscarella, Thaise Emilio, Oliver L. Phillips, Simon L. Lewis, Ferry Slik, Wj Baker, Thomas L.P. Couvreur, Wolf L. Eiserhardt, Jens Christian Svenning, K Affum‐Baffoe, Shin Ichiro Aiba, Ec Almeida, Ss Almeida, Ea Oliveira, E Álvarez‐Dávila, Luciana F. Alves, Cm Alvez‐Valles, Fabrício Alvim Carvalho, Fernando Alzate Guarin, Ana Andrade, Luis E.O.C. Aragão, Alejandro Araujo Murakami, Luzmila Arroyo, Peter S. Ashton, Gerardo A.Aymard Corredor, Tr Baker, Jose L.C. Camargo, Jos Barlow, Jean François Bastin, Natacha Nssi Bengone, Erika Berenguer, Nicholas Berry, Lilian Blanc, K Böhning‐Gaese, Damien Bonal, Frans Bongers, Matt Bradford, Fabian Brambach, Francis Q. Brearley, Steven W. Brewer, Jose L.C. Camargo, David G. Campbell, Carolina V. Castilho, Wendeson Castro, Damien Catchpole, Martínez Ce Cerón, Shengbin Chen, Phourin Chhang, Percival Cho, Wanlop Chutipong, Connie Clark, Murray Collins, James A. Comiskey, Massiel Nataly Corrales Medina, Flávia R.C. Costa, Heike Culmsee, H David‐Higuita, Priya Davidar, J Aguila‐Pasquel, Géraldine Derroire, Fiore A Di, Do T Van, Jean Louis Doucet, Aurélie Dourdain, Donald R. Drake, Andreas Ensslin, Terry Erwin, Corneille E.N. Ewango, Robert M. Ewers, Sophie Fauset, Ted R. Feldpausch, J Ferreira, Lv Ferreira, Markus Fischer, Janet Franklin, Gabriella M. Fredriksson, Thomas W. Gillespie, Martin Gilpin, Christelle Gonmadje, Arachchige Upali Nimal Gunatilleke, Khalid Rehman Hakeem, Jefferson S. Hall, Keith C. Hamer, David J. Harris
The Global Abundance Of Tree Palms, Robert Muscarella, Thaise Emilio, Oliver L. Phillips, Simon L. Lewis, Ferry Slik, Wj Baker, Thomas L.P. Couvreur, Wolf L. Eiserhardt, Jens Christian Svenning, K Affum‐Baffoe, Shin Ichiro Aiba, Ec Almeida, Ss Almeida, Ea Oliveira, E Álvarez‐Dávila, Luciana F. Alves, Cm Alvez‐Valles, Fabrício Alvim Carvalho, Fernando Alzate Guarin, Ana Andrade, Luis E.O.C. Aragão, Alejandro Araujo Murakami, Luzmila Arroyo, Peter S. Ashton, Gerardo A.Aymard Corredor, Tr Baker, Jose L.C. Camargo, Jos Barlow, Jean François Bastin, Natacha Nssi Bengone, Erika Berenguer, Nicholas Berry, Lilian Blanc, K Böhning‐Gaese, Damien Bonal, Frans Bongers, Matt Bradford, Fabian Brambach, Francis Q. Brearley, Steven W. Brewer, Jose L.C. Camargo, David G. Campbell, Carolina V. Castilho, Wendeson Castro, Damien Catchpole, Martínez Ce Cerón, Shengbin Chen, Phourin Chhang, Percival Cho, Wanlop Chutipong, Connie Clark, Murray Collins, James A. Comiskey, Massiel Nataly Corrales Medina, Flávia R.C. Costa, Heike Culmsee, H David‐Higuita, Priya Davidar, J Aguila‐Pasquel, Géraldine Derroire, Fiore A Di, Do T Van, Jean Louis Doucet, Aurélie Dourdain, Donald R. Drake, Andreas Ensslin, Terry Erwin, Corneille E.N. Ewango, Robert M. Ewers, Sophie Fauset, Ted R. Feldpausch, J Ferreira, Lv Ferreira, Markus Fischer, Janet Franklin, Gabriella M. Fredriksson, Thomas W. Gillespie, Martin Gilpin, Christelle Gonmadje, Arachchige Upali Nimal Gunatilleke, Khalid Rehman Hakeem, Jefferson S. Hall, Keith C. Hamer, David J. Harris
School of Geography, Earth and Environmental Sciences
No abstract provided.
The Effect Of Irradiation And Radiolytic Oxidation On The Porous Space Of Gilsocarbon Nuclear Graphite Measured With Mercury Porosimetry And Helium Pycnometry, Katie L. Jones, G. Peter Matthews, Giuliano M. Laudone
The Effect Of Irradiation And Radiolytic Oxidation On The Porous Space Of Gilsocarbon Nuclear Graphite Measured With Mercury Porosimetry And Helium Pycnometry, Katie L. Jones, G. Peter Matthews, Giuliano M. Laudone
School of Geography, Earth and Environmental Sciences
Gas pycnometry and mercury porosimetry are used to investigate the porous network of Gilsocarbon nuclear graphite samples that are representative of the material present in the cores of UK Advanced Gas-Cooled reactors at different stages of the reactors’ operational lifetimes. Irradiation and radiolytic oxidation change the pore volume of nuclear graphite and the relative ratios of open (coolant gas accessible) and closed pore volume. Particular focus has been paid to the deformation of the Gilsocarbon graphite observed during mercury intrusion at high pressure, which has previously marred the use of porosimetry to characterise this material. The results show clear trends …
Finding The Voice: Organic Carbon Isotope Chemostratigraphy Of Late Jurassic - Early Cretaceous Arctic Canada, Jennifer M. Galloway, Madeleine L. Vickers, Gregory D. Price, Terence Poulton, Stephen E. Grasby, Thomas Hadlari, Benoit Beauchamp, Kyle Sulphur
Finding The Voice: Organic Carbon Isotope Chemostratigraphy Of Late Jurassic - Early Cretaceous Arctic Canada, Jennifer M. Galloway, Madeleine L. Vickers, Gregory D. Price, Terence Poulton, Stephen E. Grasby, Thomas Hadlari, Benoit Beauchamp, Kyle Sulphur
School of Geography, Earth and Environmental Sciences
No abstract provided.
Isotopic Evidence For Partial Geochemical Decoupling Between A Jurassic Epicontinental Sea And The Open Ocean, Silvia Danise, Gregory D. Price, Matthias Alberti, Steven M. Holland
Isotopic Evidence For Partial Geochemical Decoupling Between A Jurassic Epicontinental Sea And The Open Ocean, Silvia Danise, Gregory D. Price, Matthias Alberti, Steven M. Holland
School of Geography, Earth and Environmental Sciences
No abstract provided.
Amber From The Triassic To Paleogene Of Australia And New Zealand As Exceptional Preservation Of Poorly Known Terrestrial Ecosystems, Jeffrey D. Stilwell, Andrew Langendam, Chris Mays, Lachlan J.M. Sutherland, Antonio Arillo, Daniel J. Bickel, Silva Wt De, Adele H. Pentland, Guido Roghi, Gregory D. Price, David J. Cantrill, Annie Quinney, E Penalver
Amber From The Triassic To Paleogene Of Australia And New Zealand As Exceptional Preservation Of Poorly Known Terrestrial Ecosystems, Jeffrey D. Stilwell, Andrew Langendam, Chris Mays, Lachlan J.M. Sutherland, Antonio Arillo, Daniel J. Bickel, Silva Wt De, Adele H. Pentland, Guido Roghi, Gregory D. Price, David J. Cantrill, Annie Quinney, E Penalver
School of Geography, Earth and Environmental Sciences
No abstract provided.
Carbonate Clumped Isotope Evidence For Latitudinal Seawater Temperature Gradients And The Oxygen Isotope Composition Of Early Cretaceous Seas, Gregory D. Price, David Bajnai, Jens Fiebig
Carbonate Clumped Isotope Evidence For Latitudinal Seawater Temperature Gradients And The Oxygen Isotope Composition Of Early Cretaceous Seas, Gregory D. Price, David Bajnai, Jens Fiebig
School of Geography, Earth and Environmental Sciences
No abstract provided.
Using Spatial Patterns Of Fluvial Incision To Constrain Continental-Scale Uplift In The Andes, L. A. Evenstar, A. E. Mather, A. J. Hartley
Using Spatial Patterns Of Fluvial Incision To Constrain Continental-Scale Uplift In The Andes, L. A. Evenstar, A. E. Mather, A. J. Hartley
School of Geography, Earth and Environmental Sciences
Geomorphic archives, particularly longitudinal river profiles, are increasingly used as a proxy to reconstruct uplift rates in mountainous regions. Within the Atacama Desert, Northern Chile, slow, long-term erosion creates exceptional preservation of fluvial and alluvial surfaces. This enables river incision patterns to be used on a continental-scale (>250 km) along the western margin of the Andes (18°00'S to 20°15′S) and over a time frame from Miocene to Present day. The data show marked compartmentalisation of fluvial system behaviour with changes in incision rates from south to north creating 3 distinctly different regions. Within these different sectors, incision rates are …
Particle-Water Interactions Of Bismuth Under Simulated Estuarine Conditions, Lydia J. Knight, Andrew Turner
Particle-Water Interactions Of Bismuth Under Simulated Estuarine Conditions, Lydia J. Knight, Andrew Turner
School of Geography, Earth and Environmental Sciences
No abstract provided.